Will an external bearing bicycle bottom bracket thread into the same frame as an older 3-piece crank?

Question by Question Master: Will an external bearing bicycle bottom bracket thread into the same frame as an older 3-piece crank?
I have an older bike frame that took the previous generation of 3-piece crank (where everything fit inside the frame). It’s not the really old kind with a one-piece crankset. Will a new style external bottom bracket thread into this frame?

Best answer:

Answer by mtrlbiker
Yes, external bottom brackets use the same threading as older 3 piece cranks. You might have to have the bottom bracket shell faced by a bike shop

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